Average temperature in May is 12.7 °C
Average daytime temperature is 18 °C
Average night temperature is 6.4 °C
Absolute maximum temperature: 24.5 °C
Absolute minimum temperature: -0.2 °C
Number of sunny days: 23
Number of rainy days: 8
Number of snow days:
Precipitation sum: 15 mm
* Weather data for Olsztyn Poland is based on climate observations for 2023 year
| May (°C) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperature | 14.4 | 15.6 | 12.9 | 14.4 | 12 | 11.7 | 13.8 | 15.2 | 16.9 | 17.7 | 18 | 20.1 | 21.8 | 23 | 17.5 | 16.3 | 15 | 15.6 | 13.8 | 22.3 | 22.5 | 22.9 | 22.2 | 24.5 | 21.6 | 18.7 | 17.4 | 19.8 | 19.7 | 20.2 | 21.6 |
| Apparent max temperature | 11.8 | 11.5 | 9.2 | 11 | 8.5 | 6.6 | 10.5 | 13.4 | 13.9 | 12.9 | 14 | 15.9 | 18.3 | 19.9 | 13.9 | 13.7 | 11.7 | 13 | 10.7 | 20.8 | 20.7 | 21.2 | 20 | 22.6 | 21.2 | 16.9 | 14.5 | 18.9 | 17.2 | 16.9 | 19.6 |
| Mean temperature | 8.3 | 9.4 | 6.8 | 9.1 | 7.8 | 7.8 | 8.7 | 9.5 | 10.9 | 11.9 | 12.8 | 14.1 | 15.4 | 17 | 13.8 | 12.9 | 10.7 | 10.7 | 10.5 | 16.1 | 16.6 | 17 | 17.8 | 19.5 | 16 | 13 | 12.5 | 14.2 | 14.3 | 14.1 | 14.7 |
| Apparent mean temperature | -3.8 | -1.9 | -2.9 | -0.8 | 0 | -2.5 | -0.6 | -2.4 | -0.6 | 1.6 | 2.9 | 3.6 | 3.7 | 5.2 | 9 | 7.8 | 3.8 | 2 | 5.1 | 7.7 | 8.2 | 7.4 | 9.1 | 11.9 | 7.9 | 5.1 | 3.9 | 3.7 | 4.1 | 5.5 | 2.9 |
| Minimum temperature | -0.2 | 1.2 | -0.1 | 2.2 | 4.9 | 2.2 | 3.1 | 1.1 | 2.6 | 5.4 | 6.7 | 7.3 | 6.5 | 7.8 | 11.5 | 10.2 | 7 | 5.1 | 8.3 | 10.2 | 10.2 | 9.4 | 10.6 | 14 | 9.5 | 7.9 | 6.6 | 6.2 | 6.6 | 7.7 | 5.2 |
| Apparent min temperature | 5.1 | 6.1 | 3.7 | 6.1 | 3.7 | 3.1 | 5.1 | 6.7 | 7.5 | 7.7 | 8.7 | 10.2 | 12.7 | 14.1 | 10.7 | 10.1 | 8 | 7.3 | 7.8 | 14.1 | 14.8 | 14.9 | 15.9 | 17.6 | 14.4 | 10.4 | 9.5 | 12.2 | 11.9 | 11.3 | 12.6 |
| May | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight duration (h) | 15.1 | 15.2 | 15.2 | 15.3 | 15.3 | 15.4 | 15.5 | 15.5 | 15.6 | 15.7 | 15.7 | 15.8 | 15.8 | 15.9 | 15.9 | 16 | 16.1 | 16.1 | 16.2 | 16.2 | 16.3 | 16.3 | 16.4 | 16.4 | 16.4 | 16.5 | 16.5 | 16.6 | 16.6 | 16.7 | 16.7 |
| Sunshine duration (h) | 13.4 | 3.7 | 13.8 | 8.7 | 8.8 | 5.6 | 14.2 | 14.3 | 14.3 | 14.4 | 14.4 | 14.3 | 14.4 | 14.6 | 0 | 6.5 | 3.4 | 11.6 | 0 | 10.1 | 14.9 | 14.6 | 9.3 | 13.6 | 14.7 | 15 | 15 | 15 | 14 | 14.4 | 15.1 |
| Precipitation (mm) | 0 | 1.1 | 0 | 0.4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.4 | 0 | 7.1 | 1.4 | 0.6 | 0 | 3.5 | 0.6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitation hours | 0 | 3 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 11 | 9 | 4 | 0 | 12 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Wind speed (m/s) | 16.4 | 21.7 | 15.2 | 16.6 | 17.1 | 22.3 | 17.3 | 12.6 | 15 | 24.6 | 23 | 23.5 | 16.7 | 20.8 | 29 | 29.8 | 19.5 | 16.1 | 16.5 | 17 | 13.5 | 14.8 | 13.9 | 15.6 | 19.7 | 24.3 | 15.8 | 10.2 | 18.2 | 19.8 | 15.8 |
In May 2023, the highest daytime temperature in Olsztyn was 24.5°C.
While the minimum temperature at night dropped to -0.2°C.
The average nighttime and daytime temperatures during May in Olsztyn are 6.4°C and 18°C respectively.
The precipitation sum in May is about 15 mm.